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[Ecosystem] Biological consentration

by Eco Generation | 03-06-2011 08:28 Comments 13 Comments recommendations 0 recommendations

Biological concentration

Pesticide use shrinks bird population and kills birds by making the eggshell too thin and fragile. Furthermore spiders also die from eating preys contaminated with pesticides.

1.What is biological concentration?
Pesticides or heavy metals, through intake, do not get digested or removed but build up in our body. Biological concentration refers to the trend the higher the status in food pyramid, the higher the concentration of pesticides in the system. Since human is an omnivorous animal that can eat every animal on food chain, it has very high exposure to the risks posed by pesticide.

2.What causes biological concentration?
It results from water or soil seeped with the heavy metals or non-biodegradable pesticides residue in sewage, leachate, pesticides sprayed on crops, contaminated water from abandoned mine, industrial waste, and all sorts of wastes. Since synthetic chemical compounds like PCB, DDT and BHC are especially non-biodegradable, they accumulate in the food we eat posing great health threat.

3.Health threat by pollutants_00
3.Health threat by pollutants_01

information to know
In 1953, some residents of Minamata prefecture in Japan succumbed to serious bout of illness. They had difficulty in walking and experienced paralysis of hand and feet, and weakening of language skills and vision. What was causing these ailments? It turned out what made them seriously ill was seafood poisoned with mercury. And this mercury was contained in the wastewater generated from nitrogen fertilizer plant in Minamata prefecture.

What is 'ltai ltai' disease?
Cadmium produced from wastewater of lead and zinc refining process is introduced and reside in water, fish, agricultural produce we daily consume. Those who had eaten these contaminated food experienced difficulties in walking and atrophy of bones, and it has identified in 1968 that cadmium is the culprit of these terrifying symptoms.

4.How to minimize harm from pollutants?
¿Refrain from using biological concentration inducing product
¿Develop biodegradable pesticide
¿Strictly separate garbage


Jasmine Karki

  • Jasmine Karki says :
    Thanks for sharing!!
    Posted 31-03-2020 03:20

  • says :
    Posted 25-11-2014 18:35

  • says :
    Encouraging organic has always been my message to the farmers here.
    Posted 09-06-2014 09:28

  • says :
    good share
    Posted 31-12-2013 20:30

  • says :
    thanks for this
    Posted 31-12-2013 00:27

  • says :
    its very harmful mainly to the marine and rivers organism
    Posted 27-12-2013 03:16

  • says :
    it pretty as biomagnification
    Posted 23-12-2013 00:15

  • says :
    chemical pesticide should be banned totally
    Posted 15-12-2013 01:40

  • says :
    thanks for nice article
    Posted 31-08-2013 04:04

  • says :
    Thanks for sharing!
    Posted 23-07-2013 23:04

  • says :
    many harmful pesticides are banned but still their residue is left
    Posted 20-07-2013 12:39

  • says :
    is it also called biomagnification?
    Posted 19-07-2013 03:00

  • says :
    Correct, we must encourage Organic. Shun pesticides.
    Posted 17-06-2013 23:53

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